| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [prep] [det] years ' | 20 |
|
| 2 | [noun sg] of [det] years ' | 17 |
|
| 3 | [noun sg] [prep] several years ' | 8 |
|
| 4 | [noun sg] [prep] many years ' | 8 |
|
